Process and apparatus for edging cardboard articles and similar objects



Oct- 3, 1933; i P. A. G. CASSEGRAIN 1,929,137

PROCESS AND APPARATUS FOR EDGING CARDBOARD'IRTIGLES AND SIMILAR OBJECTS Filed Feb. 9, 1951 4'Sheets-Sheet I 35 P. A. G. CASSEGRAIN 37 .raoca'ss AND APPARMus ron mama cAnnBdAnn ARTICLE AND snuum owners -.Fi1ed.Feb.. 9, 1931 4 heets-Sheet 2 FIGQ- Oct. 3, 1933. I i P. G. CASSEGRAIN v PROCESS AND APPARATUS FOR EI JGING CARDBOARD ARTIQLES AND SIMILAR OBJECTS Filed Feb. 9, 1951 4 Sheets-Shoot s FIGS.

Oct. 3, 1933, P, A, sQcA ssl-jc RAm I 1 9295137 PROCESS AND APPARATUS FOR EDGING CARDBOARD Aizn'cmss AND s numn 05.13018 Filed Feb. 9, 1931 4 Sheets-Shoot 4*;

FIGB- or other material.-

Patented Oct. 3,1933 I rnocnss AND APPARATUS FOR IEDGING CARDBOARD narrows AND snumm.

OBJECTS I Pierre Auguste Gustave bassegrain, Rennea,-

. Frame Application February 9, 1931, Serial No. 514,690,

' and in France February 12, 1930 9 Claims. (01. 93-1) This invention relates to a process and an or cardboard,'by suction caused for instance by apparatus for edging or lining the edges of, sheets exhausting air from hollow parts provided 'with of cardboard, plates of glass or other material holes in front of which the strip is moved; or similar objects, with a strip of paper, fabric (e) the paper or other strip wound for .in-

' stance on a bobbin, can be unwound, passed it The process in question consists substantially desired over a device ensuring its being turned in bringing the plate (or other article) to which over at right angles to the direction of movea movement of advance has been imparted at ment of the'plate, then seized by pincers which right angles to the paper (or other) strip which stretch it in front of the edging device and autoit meets in the centre of its width (if the edg-' matically release it by opening as soon as the 65 ing or lining is to be of the same width on both desired length of strip has been unwound, a suitfaces of the plate), then in introducing the plate able shearing or cutting device then cutting off or other article and the strip of paper which it automatically the desired length of strip;

s driving w between tWO fi d parts, i (I) the strip thus cut to the desired length is 5 such a manner that the central portion of the held straight by suction due for instance to expaper h d rfi a tomatically turned over on hausting of air inthe turning over device or elsetop and onthe bottom of the plate, whilst its two where; 3

free ends are applied to the lateral edges thereof (g) the pincers are held by a sliding carriage and turned over above and below the saidedges, so that they can seize the free end of, the paper the ,corner fittings being formed simultaneously or other strip after the cutting ofi of the portion at the two ang es o the plate or other article. of the latter intended for one edging operation As soon as the plate is thus lined on three of its and the completion of the said operation, and sid s, th lining is mpl d y aus it to pas can stretch it in front of the edging device for in the other direction, with a new strip, between anew operation; the two fixed parts. (it) the plate once having been edged or lined, 80

F r ar y u t pr ss i p t may passed between rollers preferably lined with rubbe utilized a a hine, compr n for instance her and intended to cause the edging to adhere one or more of the following characteristic teat t box tures, either severally or in combination: A construction according t th invention is (a) The plates or other articles are stacked m t te by way f examme in th accompanyiflamagazinc holder whence'they are brought ing drawings, without, however, any limitation. one after another to the edging device by an I thg said drawings: endless chainor band having a movement of Figure 1 shows t apparatus in cross section advance and provided with driving fingers or through t edging device, 35 ,tappets, each of which drivesthe bottom box of Figure 2 shgws th a paratus in plan. the stack out of the maga i Figure 3 is a partial detail view of the magazine (b) the edging device is constituted by botfor t articles t be edged. tom and top blocks. The distance between said Figures 4 and 5 are detail views, in m n and blocks is adjustable in the horizontal plane and m; 1 t1 n; f the edging device. 40 in height, these blocks being preferably cham- Figure 6 a partial detail 1 of t means fered or bevelled at their front edge so as to for regulating t height of th sliding bar for provide a suitably widened inlet for the boxes t upper edging b1 k or other articles; l Figures '7 and 8 are detail views of one of the (c) the edg ng d v c s pleted at each parts in the form of half-funnel of the edging $5 side by a part having the shape of hali-a-funnel, d i e the edges of which are turned gradually from the Figures 9, 10 and 11 are detail views of the front backwards until h y f rm a k d of gutter, mechanism for cutting of! the paper or other to enable t e edges of the P p other ip strip and of the movable pincers for seizing it. to be applied to the sides of the plate and to be Figure 12 shows a plate after an edging opturned over above and below the said sides; eration in the apparatus.

(d) the paper or other strip, previously On a bed or frame 1 (Figures 1 and '2) are gummed or pasted, is stretched in front of the mounted two angle irons 2 lined at the back and edging device, then cut to the desired length and On a Po t of their length w W v cal held in place in front of the said device at right plates 3 turned at right a es at towa ds t e angles to the direction of movement of the plate front so as to form a kind of magazine or holders q A in ,which can be stacked the plates or other articles B (Fig. 3) to be edged. At the bottom each of the right angle flanges 3 has a recess 4 (Figure 3) closed by a movable vertical blade 5 vertically adjustable by means of a screw 6 so as to enable the height of the free passage a left at the bottom by the said right angle flanges to be regulated so as to allow the plates B or other articles to be driven one after another out of the magazine towards the edging device; the height of the passagea. will depend therefore on the thickness of the plate or other article.

The two angle irons 2 instead of being permanently secured to the bed of the machine, are preferably mounted at an adjustable distance from each other, so as to enable plates of any length to be edged.

Under the magazine A travels the upper section of an endless chain 7 which passes over guide wheels 8-9 and is provided at intervals with tappets 10 of the thickness of a plate or other article, each intended to drive one of the latter (the lowest of the stack) towards the edging device when it passes right under the magazine.

The edging device is oonstitutedby two setsof blocks 11 (Figures 1, 4 and 5). Each block of a set is mounted so as to slide along a bar 12, at a suitable point of which it can be fixed by means of a bolt 13 passing through a slot 14 of the bar, and of a nut 15. It is thus possible to regulate at will the distance between the blocks 11 of each set and the width of the plates or other articles to be edged or lined.

The upper bar 12 can be arranged at the desired distance from the bottom bar 12 to suit the thickness of the articles to be lined or edged, owing to the fact that it is mounted in a vertically adjustable manner by means of the screws 16 in the bed 1 of the machine (Figure 6).

Each block 11 is preferably rounded-off in front so as to facilitate the penetration of the plate and of the strip of edging paper, without any possible deterioration, between the top and the bottom blocks.

At either side of the top and bottom blocks 11 are arranged sort of half tunnels 17 (Figures 4 and 5) each constituted by one or two parts (for instance of cast bronze) having a vertical surface curved at the side of the inlet for the plate or other article, the said surface being extended by a more or less pronounced folding of its upper and lower edges so as to form finally a real horizontal gutter b (Figures '7 and 8). Each of the parts 17 has therefore really the shape of half a funnel; 'the latter, cut in an axial plane, has its widened opening at the side of arrival of the boxes to be lined, the edge of which subsequently known type, then over a guide pulley 22and finally over a hollow" block 23 (Figures 9-11) {having one of its sides 23' cut at 45 and roundedoff, on which the strip is turned into vertical position in a plane at right angles to the plane of its previous travel.

The paper strip 18 passes then in vertical posi- -retum on the carriage begins.

tion in front of the edging device previously 'described (blocks 11 and half-funnel 17) which is preceded and followed by two hollow bars 24 and 25, the object of which will be hereinafter described. The end of the paper strip 18 is then 30 seized by pincers 26, the movable spring controlled branch of which is pivoted at 27 on a carriage 28 sliding along a bar 29 integral with the bed of the machine. It is on this bar 29 that can be fixed the block 23 described in the foregoing. A connecting rod 30 pivoted at 31 and provided with a roller 32 engaging with a cam groove. 33 of suitable shape provided in the outside surface of a drum 34 driven by a shaft 35, makes it possible to reciprocate the carriage 28 along the bar 29.

Before starting the machine, a certain length of strip 18 is unwound by hand and caused to follow the path described up to the pincers 26 between the fixed and movable branch of which its free end is then fixed. The drum 3% is started, and on starting begins to move the carriage 28 in the direction of the arrow 1 of Figure 2, owing to which the strip of paper 18 is stretched in front of the edging device 11-17 and in front of the hollow bars 24, 25.

At a given moment the tail 26' of the spring controlled pincers 26 will meet a fixed cam surface 36 so that the pincers will be forced to open and to release the end of the paper strip 18. But the latter though released by the pincers remains in contact with the edging device 11--1'7 owing to the suction acting on it through the holes 37 provided in the hollow bars 24 and 25 connected by pipes 38 to a turbine or other suc- 1.10 tion apparatus 39.

The position of the cam surface 36 can be regulated at will along a bar 40 integral with the machine bed, to suitthe length of lining strip 18 to be unwound.

At-this moment the paper strip cutting device becomes operative and cuts it to the desired length. This device is constituted by shears (Figures 9-11) comprising a fixed blade 41 mounted at the end of a fixed spindle 42, and a movable blade 43 mounted at the end of a sleeve 44 rotating on the said spindle 42, and held normally open by a spring 45. A tappet 46 secured to the end of a rocking connecting rod 4'7 pivoted at 48 andpperated by a cam 49 mounted on the spindle 35, presses against a roller 51 secured to an arm 52 provided at the other end of the sleeve 44.

The cutting device 41-43 becomes operative as soon as the end of the paper strip 18 has been released by the pincers 26, as already described. The end of the strip thus cut is then held in contact with the turning-over block 23 by the suction acting on it through the hole or holes 53 provided in the said block connected by a pipe 54 to the suction turbine or other apparatus 39.

The carriage 28 preferably makes a stop at the end of its travel in the direction of the arrow f, in order to enable a plate of a larger size which has got into the edging device 11-17, as will be seen later, to disappear completely before the As soon as the plate is lined, the carriage 28 returns in the direction of the arrow f of Figure-2; the tail 26' of the pincers 26 strikes'then a cam surface 55 pivoted at 56 which forces the said pincers to open. It is in this position that the pincers 26 reach the new free end of the paper strip 18 held in contact with the block 23 as already described. At this exact moment the cam surface 55 is passed and the pincers 26 exposed to the-action of their spring, close over the end of the paper strip. The carriage 28 resumes thereupon its movement in the direction of the arrow f and pulls the paper strip with it.

In this movement the tail of the pincers 26 strikes the cam surface 55 from behind and slides over the back of the said surface which, being pivoted at 56 and provided with a return spring other articles a plate B for instance, brought by one of the tappets 10 of the endless chain '7, is pushed by the said tappet between the blocks 11.

This plate meets then the paper strip 18 in the middle of, its width and drivesit with its front edge in penetrating into the space widened at its front part which separates the blocks 11. The paper strip 18 is therefore turned over (with its gummed face against the plate) at each side on the front edge of the plate B which is thus edged or lined at 18 (Figure 10).

At the same time the plate 13 gets gradually with its lateral edges into the gutters b of the funnels 1'7. The two free ends. of the paper strip 18, driven in the movement of advance of the plate, are turned over the lateral edges of the latter by the said gutters'b and cover them at the top and at the bottom at 18" (Figum 12) During this turning over of the free ends of paper on the sides of the plate, the corner fittings 18" are automatically formed in a perfect manner at the angles or corners of the plate.

On leaving the device 11--17 forming folds and edging or lining, the plate B passes between the top and bottom rollers 58 (of rubber, or preferably rubber coated on their circumference) of sets of rolls C, D which are intended toapply the edging paper '18 to the plate and to ensure its adhesion.

The bottom rollers 58 of the said rolls C and D are mounted on spindles 59 carrying toothed wheels 60 meshing with a toothed pinion 61. The rollers of the set C begin to rotate when the plate B is pushed between them by the tappet 10 of the chain '7, and by means of the wheels and pinion 6061 rotate the rollersof the set D in the same direction. A toothed wheel 62 meshes with a toothed wheel 61 of the set C and has an eccentric trunnion pin 65 for a connecting rod 64 which operates a rocking lever 65 provided at one of its ends with a pawl 66 engaging with a ratchet wheel 6'7 mounted on a spindle 68. The latter is therefore given a slow' intermittent rotation by the rotation of the set C and produces a similar movement, of a band 69 constituted for instance by several parallel endless bands passing over guide pulleys '70.

' Each time that a plate B is pushed between the edging blocks 11, then between the rollers of the first set C, there will take place therefore an advance of the band 69 which causes an advance of the previously edged or lined plate and so on. On reaching the end of the band 69, the lined plate passes to the inclined planes 71 which discharge it outwards.

The plate once lined on three sides only as indicated in Figure 12, is reintroduced into the machine is in the other direction in order to complete its lining on all sides.

It nwill be seen that the apparatus makes it possible to edge or line plates or other articles of very different shapes, and'the passage from one side to another is a very simple matter and can be done very quickly.

I claim:

1. Process for edging plates with a strip, which consists in causing a plate, moved at right angles to the strip, to meet said strip at an intermediate point of its width, in introducing the plate together with the strip driven thereby between two fixed parts, in automatically folding over the central portion of the strip on top and bottom of the plate, in applying the free ends'of the strip to the lateral edges of the plate and in producing simultaneously the corner fittings at the two angles of the plate.

2. In an apparatus for carrying out the process described, a magazine for holding plates, means for feeding the plates, means for holding a strip, cam-controlled means for leading said strip across the path of travel of .the plate and coacting with the holding means for holding it under tension, means for severing the strip at the desired length, means for applying the strip on the sides of the plate and means for causing folding of the strip and for turning the free ends on top and bottom of the plate as said plate advances, said applying means and folding means coacting simultaneously to fold thestrip over the two leading corners of the plate, means for pressing the stripped plate to cause adhesion of the strip, and means for discharging the finished product" 3. In an apparatus for carrying out the process described, a magazine for holding plates, means for feeding the plates, a bobbin supporting the coils of a strip, a gumming device for the strip, a

guide pulley for the strip, a hollow block out out at 45? on one side-and rounded off, pincers for seizing the end of the strip, a sliding carriage supporting the movable'spring controlled branch of said pincers, cam-controlled means for leading said strip across the path of travel of the plate and coacting with the holding means for holding it under tension, means for severing the strip at the desired length, means for applying the strip on the sides of the plate and means for causing folding of the strip and for turning the free ends on top and bottom of the plate as said plate advances, said applying means and folding means coactingsimultaneously to fold the strip over the two leading corners of the plate, means for pressing the stripped plate to cause adhesion of the strip, means for discharging the finished product.

4. In an apparatus for carrying out the process described, a magazine for holding plates, means for feeding the plates, a bobbin supporting the coils of a strip, agumming device for the strip, a guide pulley for the strip, a hollow block out out at 45 on one side and rounded off, pincers for seizing the end of the strip, a sliding carriage supporting the movable spring controlled branch of said pincers, a fixed cam opening the pincers strip and for turning the free end on top .and

bottom of the plate as said plate advances, said applying means andfolding means coacting simultaneously to fold the strip over the two leadits ing corners of the plate, means for pressing the stripped plate to cause adhesion of the strip, means for discharging the finished product.

5. In an apparatus for carrying out the process described, a magazine for holding plates,means for feeding the plates, a bobbin supporting the coils of a strip, a gumming device for the strip, a guide pulley for the strip, a hollow block out out at 45 on one side and rounded 01f, pincers for seizing the end of the strip, a sliding carriage supporting the movable spring controlled branch of said pincers, a fixed cam opening the pincers for leading the strip across the path of travel of the plate and coacting for holding it under tension, a fixed blade on a fixed spindlepa rotating blade on said spindle, means for applying the strip on the sides of the plate and means for causing folding of the 'strip and for turning the free end on top and bottom of the plateas said plate. advances, said applying means and folding means coacting simultaneously to fold the strip over the two leading corners of the plate, means for pressing the stripped plate to cause adhesion of thestrip, means for discharging the finished product.

6. In an apparatus for carrying out the process described, a magazine for holding plates, means for feeding the plates, a bobbin supporting the coils of a strip, a gumming device for the strip, a guide pulley for the strip, a hollow block out out at 45-on one side and rounded off, pincers for seizing the end of the strip, a sliding carriage supporting the movable spring controlled branch of said pincers, a fixed cam opening the pincers for lead ng the strip across the path of the plate and coacting for holding it under ten sion, a fixed blade on a fixed spindle, a rotating blade on said spindle, bottom and top blocks adjustable in the horizontal plane and in height and means for causing folding of the strip and fonturning the free end on top and bottom of the plate as said plate advances, said applying means and folding means coacting simultaneously to fold the strip over thetwo leading corners of the plate, means for pressing the stripped plate to cause adhesion of the strip, means for discharging the finished product.

'7. In an apparatusfor carrying out the process described, a magazine for holding plates, means.

for feeding the plates, at bobbin supporting the coils of a strip, a gumming device forthe strip, a guide pulley for the strip, a hollow block out out at 45 on one side and rounded off, pincers for seizing the end of the strip, a sliding carriage supporting the movable spring" controlled branch of said pincers, a, fixed cam opening the pincers for leading the strip across the path of the plate and coacting for holding it under tension, a fixed blade on a fixed spindle, a rotating blade on said spindle, bottom and top blocks adjustable in the horizontal plane and in height and chamfered at their front edge and means for causing folding of the strip and for turning the free end on top and bottom of the plate as said plate advances, said applying means and folding means coacting simultaneously to fold the strip over the two leading comers of the plate, means for pressing the stripped plate to cause adhesion of the strip, means for discharging the flnished product.

8. In an apparatus for carrying out the process described, a magazine for holding plates, means for feeding the plates, 9. bobbin supporting the coils of a strip, agumming device for the strip, a guide pulley for the strip, a hollow block out out at 45 on one side and rounded oil, pincers for seizing the end of the strip, a sliding carriage supporting the movable spring controlled branch of said pincers, a fixed cam opening the pincers for leading the strip across the path of the plate and coacting for holding it under tension, a fixed blade on a fixed spindle, a rotating blade on said spindle, bottom and top blocks adjustable in the horizontal plane and in height and chamfered at their front edge and, at each of said blocks, a half funnel adjustable in position with a vertical surface curved at the side of the inlet, hollow bars preceding and following said half funnel, holes in said bars, a suction apparatus connected by pipes to each of said holes, said blocks, funnel, bars and suction apparatus coacting simultaneously to fold the strip over the two leading corners of the plate, means for pressing the stripped plate to cause adhesion oi the strip, means for discharging the finished product.

9. In an apparatus for carrying out the process described, a magazine for holding plates, means for feeding the plates, a bobbin supporting the coils of a strip, a gumming device for the strip, a guide pulley for the strip, a hollow block out out at 45 on one side and rounded ofl', pincers for seizing they end of the strip, a sliding carriage supporting the movable spring controlled branch of said pincers, a fixed cam opening the pincers for leading the strip across the path of the plate and coacting for holding it under tension, a fixed blade on a fixed spindle, a rotating blade on said spindle, bottom and top blocks adjustable in the horizontal plane and in height andchamfered at their front edge and, at each of said blocks, a half funnel adjustable in position with a vertical surface curved at the side of the inlet, hollow bars preceding and following said half funnel, holes in said bars, a suction apparatus connected by pipes to each of said holes, said blocks, funnel bars and suction apparatus coacting simultaneously to. fold the strip over the two leading corners of the plate, a set of top and bottom rollers following the funnels, means for rotating said rollers, means for discharging the finished product.

PIERRE AUGUS'I'E GUSTAV'E CASSEGRAIN. 

